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A kind of microetching agent for magnesium alloy and surface treatment process before nano-injection molding

A nano-injection molding and magnesium alloy technology, applied in the field of magnesium alloy surface treatment, can solve the problems of high cost, difficult and difficult treatment, and achieve the effect of enhancing bonding force and no health threat

Active Publication Date: 2021-09-21
湖北叒成科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional magnesium alloy surface treatment processes include: magnesium alloy micro-arc oxidation, magnesium alloy electroplating, magnesium alloy oil injection, magnesium alloy spray coating, magnesium alloy passivation, magnesium alloy film and other processes, and because of the active chemical properties of magnesium alloy, the treatment is difficult , resulting in higher processing costs; and the processing technology of magnesium alloy nano-injection molding composites is very difficult
[0003] The surface treatment technology of magnesium alloy nano-injection molding composite is currently being researched and developed by research institutions at home and abroad. Although the magnesium alloy and resin can be converted into a composite by using an adhesive, the cost is very high, and the bonding force between magnesium alloy and resin is also low. Not as strong as the combination of nano-injection technology transformation

Method used

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  • A kind of microetching agent for magnesium alloy and surface treatment process before nano-injection molding
  • A kind of microetching agent for magnesium alloy and surface treatment process before nano-injection molding
  • A kind of microetching agent for magnesium alloy and surface treatment process before nano-injection molding

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Embodiment 1

[0043] This embodiment discloses a magnesium alloy microetch, which includes the following components in parts by weight:

[0044] Sulfuric acid: 50 parts;

[0045] Tartaric acid: 100 parts;

[0046] Sodium nitrate: 20 parts;

[0047] Ethylene glycol: 50 parts;

[0048] Sodium lauryl sulfate: 1 part;

[0049] Pure water: 789 parts.

[0050] Preparation method: Stir and mix the above-mentioned ingredients uniformly to prepare Example 1 of magnesium alloy microetch agent.

Embodiment 2

[0052] This embodiment discloses a magnesium alloy microetch, which includes the following components in parts by weight:

[0053] Nitric acid: 100 parts;

[0054] Malic acid: 50 parts;

[0055] Potassium nitrate: 30 parts;

[0056] Polyethylene glycol: 50 parts;

[0057] Sodium dodecylbenzenesulfonate: 5 parts;

[0058] Pure water: 765 parts.

[0059] Preparation method: Stir and mix the above-mentioned ingredients uniformly to prepare Example 2 of magnesium alloy microetch agent.

Embodiment 3

[0061] This embodiment discloses a magnesium alloy microetch, which includes the following components in parts by weight:

[0062] Sulfuric acid: 100 parts;

[0063] Lactic acid: 100 parts;

[0064] Sodium nitrite: 30 parts;

[0065] Glycerol: 50 parts;

[0066] Sodium lauryl sulfate: 5 parts;

[0067] Pure water: 715 parts.

[0068] Preparation method: Stir and mix the above-mentioned ingredients uniformly to prepare Example 3 of magnesium alloy microetch agent.

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Abstract

The invention discloses a magnesium alloy microetching agent, which comprises the following components in parts by weight: inorganic acid: 50-100 parts, organic acid: 100-200 parts, slow-release agent: 20-50 parts, organic alcohol: 10- 50 parts, surfactant: 0.5-10 parts, wherein said inorganic acid includes at least one of sulfuric acid and nitric acid. The magnesium alloy microetching agent is chrome-free and phosphorus-free, and can form nano-scale holes on the surface of the magnesium alloy to enhance the bonding force between the magnesium alloy and resin. The invention also discloses a magnesium alloy nano-injection surface treatment process using the microetching agent, including degreasing, micro-etching, ash removal, surface adjustment, T treatment, and baking. The magnesium alloy nano-injection surface treatment process enhances magnesium The combination of alloy and resin components can reach the surface of nano-scale micropores without electrolytic hole expansion, suitable for magnesium alloys AZ91D and AZ31B.

Description

technical field [0001] The invention relates to the technical field of magnesium alloy surface treatment, in particular to a magnesium alloy microetch agent. Background technique [0002] In recent years, with the development of communication technology, we have rapidly leaped from 3G to 4G, and are about to enter the 5G era. The call for lightweight and complex communication equipment is getting higher and higher; magnesium is one of the lightest structural metal materials, and has the advantages of high specific strength and specific stiffness, good damping and machinability, and easy recycling. Especially the first choice for communication industry equipment. Aluminum alloy nano-injection molding composites are widely used in mobile phone casings, computer casings, and television equipment, which provides a direction for magnesium alloy nano-injection molding composites. Traditional magnesium alloy surface treatment processes include: magnesium alloy micro-arc oxidation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F1/22C23F1/40C23F1/44
CPCC23F1/22C23F1/40C23F1/44
Inventor 汪超
Owner 湖北叒成科技有限公司
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